81625401

素因数分解:

$3^9\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1$

素因数の和:80

約数の個数: 80

約数和(自身を含む): 148800960

約数和(自身を除く): 67175559

約数列:

[1, 3, 9, 11, 13, 27, 29, 33, 39, 81, 87, 99, 117, 143, 243, 261, 297, 319, 351, 377, 429, 729, 783, 891, 957, 1053, 1131, 1287, 2187, 2349, 2673, 2871, 3159, 3393, 3861, 4147, 6561, 7047, 8019, 8613, 9477, 10179, 11583, 12441, 19683, 21141, 24057, 25839, 28431, 30537, 34749, 37323, 63423, 72171, 77517, 85293, 91611, 104247, 111969, 190269, 216513, 232551, 255879, 274833, 312741, 335907, 570807, 697653, 824499, 938223, 1007721, 2092959, 2473497, 2814669, 3023163, 6278877, 7420491, 9069489, 27208467, 81625401]

約数ペア:

[(1, 81625401), (3, 27208467), (9, 9069489), (11, 7420491), (13, 6278877), (27, 3023163), (29, 2814669), (33, 2473497), (39, 2092959), (81, 1007721), (87, 938223), (99, 824499), (117, 697653), (143, 570807), (243, 335907), (261, 312741), (297, 274833), (319, 255879), (351, 232551), (377, 216513), (429, 190269), (729, 111969), (783, 104247), (891, 91611), (957, 85293), (1053, 77517), (1131, 72171), (1287, 63423), (2187, 37323), (2349, 34749), (2673, 30537), (2871, 28431), (3159, 25839), (3393, 24057), (3861, 21141), (4147, 19683), (6561, 12441), (7047, 11583), (8019, 10179), (8613, 9477)]